Climate Insights for Oneonta

The climate in Oneonta is cool. The average annual temperature is 8°C and approximately 1216mm of precipitation falls per year. Oneonta receives a notable amount of rainfall throughout the year, including during its driest month. Oneonta is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -8°C. Oneonta experiences heavy snowfall, typically from January through December.

Temperatures in Oneonta vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 21°C. The coldest month is January, when overnight lows fall to -8°C and the daily average is -5°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Oneonta is a fairly wet location, receiving approximately 1216mm of precipitation annually, which averages out to around 101mm per month. The wettest month is April, averaging 118mm of rainfall. July and October also tend to see above-average precipitation. The driest month is February, with just 85mm. That's 34mm less than April, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Oneonta receives heavy snowfall, accumulating around 223cm annually from January through December. The snowiest month is January, with approximately 44cm. Winter travel should account for significant snow cover.

Oneonta is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14km/h in winter, 13km/h in spring, 10km/h in summer, 12km/h in autumn.

It is currently summer in Oneonta, which began on June 21, 2026. Oneonta is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 26°C, while the coldest stretch bottoms out in January near -8°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Oneonta is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 97mm per month. By contrast, July can be uncomfortably hot with highs reaching 26°C, while January is the coldest period with lows dropping to -8°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Oneonta based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.